Charles s



(No Model.)

o. s.l RUE?.

GULTIVATOR.-

Patented Jan. 6, 1891.

ma norms wenn: no., Humm-no., wAsHmarQu, o. c.

UNITED STATES PATENT OFFICE.

CHARLES S. RUEF, OF DIXON, ILLINOIS, ASSIGNOR 'l'O THE GRAND DII"OURPLOIV COMPANY, OF SAME PLACE.

CU LTIVATO R.

SPECIFICATION forming part of Letters Patent No. 444,186, dated January6,

Application filed August 28,1890. Serial No. 363,363. (No model.)

To a/ZZ whmn it may concern:

Be it known that I, CHARLES S. RUEF, a citizen of the United States,residing atl Dixon, in the county of Lee and State of Illinois, haveinvented certain new and useful Improvements in Oultivators; and I dodeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the letters and figures of referencemarked thereon, which form a part of this specification.

My invention relates to improvements in cultivators in which the shovelsare carried upon depending arms, and is especially applicable tocorn-cultivators wherein variant positions of the shovels are requiredat dit'- ferent periods of the growth of the corn.

The objects ot' my invention are, first, to provide ready means foradjusting the inclination of the respective shovels laterally; second,other means for securing said adjustment longitudinally or in thedirection of the movement ofthe machine; third, other means foreffecting the vertical adjustment ot' the shovel bodily. I attain theseobjects by the mechanism illustrated in the accompanying drawings, inwhich- Figure I is a side elevation of the lower end of the usualcurvedbeam and the attachment of the shovel thereto, the changes of altitudeof the shovel and its position when the breakpin is casually brokenbeing shown in dotted lines. Fig. 2 is the same, showing in dotted linesthe extreme adjustment of the shovels longitudinally or in the line ofthe movement of the machine. Fig. 3 is a cross-section in the line x a;of Fig. l, exhibiting the mechanism employed t'or adjusting the shovellaterally. Fig. 4 is a rear elevation of the lower end of the beam, theshovel-arm, and shovel. Fig. 5 is a detail of the clamping-washersseated at the junction of the beam and shovelarm. Fig. 6 is a plan viewof the elliptical corrugated clamp formed on each side of the u pper endof the shovel-arm.

As my invention pertains only to modes of attaching the shovel to theplow-beam to obtain the variant adj ustment-s mentioned, and

is applicable to any ot' the well-known types ot cultivators, I do notdeem it necessary to show or describe the ent-ire machine or furtherthan will render intelligible the construction,location, and operationot' my invention; and, further, inasmuch as my invention is similarlyapplied to each of the shovels employed, I will limit the illustrationand description to one shovel and its beam-connections.

A is the usual plow-beam, attached in any suitable mode at its forwardend to the carrying or draft mechanism, and provided with the transverseopening l as the pivot-seat ot its shovel-arm and the Alower ortransverse opening 2 for the usual wooden break-pin employed to exerciseonly a limited degree of resistance and permit the shovel to swing backin case of contact or engagement with immovable obstacles.

B is a shovel-arm, bifurcated at its upper end to pass up on each sideof the lower end of the beam A. On the upper end of the arm B there isprovided on each side of the beam A an elliptical clamp C, provided onits exterior side with vertical corrugations 6. The clamps C are placedlongitudinally of the machine, and are provided with the centralsegmental longitudinal slot 7 to receive the transverse bolt 5, whichattaches the arm B to the beam A. Between the head and nut of the bolt5, respectively, and the corrugated surface ot' the clamp O areinterposed circular washers D, provided on their interior faces withvertical corrugations 8, adapted to engage the corrugations 6 ot' clampC, as shown in Fig. 5. The longitudinal adjustment of the shovel E iseffected by releasing: the bolt 5, and thereby the washers D, fromengagement with the clamp O and moving the shovel-arm B forward or backinto the desired position and then tightening said washers into theclamp O by means of the nut on' bolt 5.

F is the usual break-pin, seated transversely through the centralopening 10 in the shovelarm B and the lower'opening 2 in the beam A. Inthe casual breaking of the pin F the shovel E and arm B are permitted toswing backward in the position shown in dotted lines in Fig. I. In suchbackward swing of ICC the shovel and arm the clamp C and washer .Drotate upon the pin 5, and when said arm is again brought into positionso that its opening 10 will register with the opening 2 the arm will bein the same position it occupied previous to said breakage.

The lower end of the shovel-arm B is provided peripherally with verticalcorrugations 11 on each side thereof. The shovel-shoe G is suitablyformed at its front end to receive the shovel E, and is provided at itsrear end with the rearward, extending bifurcations 12 and 15, whichpass, respectively, on each side of the lower end of the arm B. Thatportion ofthe bifurcations 12 and 15 in contact with the arm B has aninner concavity 13, adapted to conform tothe periphery of the arm B, andin said concavity are formed corrugations M con form able to theexternal eorrugations llof said arm. In the rear end of the slice Gthere is seated a transverse bolt II, by the loosening and tightening ofwhich said shoe can be released from or clamped upon the arm l5. In thelateral adjustment of the shovel E the boltI H is released sutlicient topermit the bifurcations 12 and 15 to be sprung outwardly and disengagethe corrugations l1 and 14, when the shovel can be turned laterally tothe desired position and said corrugations permitted to re-engage andthe bolt II tightened. The vertical adjustment of thc shoe G and shovelE bodily is effected in substantially the modelast described and by thesame means-that is to say, the bolt H is loosened and the shoe G,carrying the shovel E, is moved upward or downward on the adjacent endof the shovel-arm Binto any desired altitude and rigidly affixed therebythe tightening of said bolt H. The corrugations l1 and 1t need be onlyslight, and the elasticit7 in theV bifurcations of the shoe G aresufficient to release their mutual engagement when the bolt H isloosened.

It will be observed that the mechanism hereinbefore described affordsthe aforesaid means of adjusting the shovel E in three differentdirections that is to say, vertically, laterally, and longitudinally.The means of adjustment are simple, strong, and durable, and each andall of them easy of access.

What I claim as my invention, and desire to secure by Letters Patent ofthe United States, is

In a eultivator attachment, thecombination, with the shovel-barring armB, the upperend of which is bifurcated and provided with the slottedcorrugated clamps and the break-pin holes and the lower end is round andprovided with vertical corrugations, of a shovelshoe G, suitably formedat its front end to rceeive the shovel and provided at its rear end withthe rearwardly-extending elast-ic bifurcations. and having an innercavity provided with vertical corrugations to conform with and fit uponthe round corrugated portion of the arm B, and a transverse bolt IIthrough the bifurcations, substantially as described.A

In testimony whereof I affix mysignature in presence of two witnesses.

CHARLES S. RUE F.

Witnesses:

JOHN G. MANAHAN, ADDA E. WARD.

